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Scientific Name | Gladiolus bilineatus G.J.Lewis |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Vulnerable D1+2 |
Assessment Date | 2006/07/24 |
Assessor(s) | P. Goldblatt & D. Raimondo |
Justification | A very rare species known from five subpopulations, all with low numbers of individuals. We estimate the total population to be fewer than 1000 mature individuals. Potentially threatened by livestock overgrazing and alien plant invasion. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Langeberg Mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | South Langeberg Sandstone Fynbos, Swellendam Silcrete Fynbos |
Description | Fynbos in coarse, sandstone-derived soils or in heavier, loamy sand on sandstone or shale. |
Threats |
| Habitat degradation, Invasive Alien Species (direct effects), Habitat loss |
Population |
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Gladiolus bilineatus G.J.Lewis | VU D1+2 | Raimondo et al. (2009) | | Gladiolus bilineatus G.J.Lewis | Rare | Hilton-Taylor (1996) | | Gladiolus bilineatus G.J.Lewis | Uncertain | Hall et al. (1980) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
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Citation |
| Goldblatt, P. & Raimondo, D. 2006. Gladiolus bilineatus G.J.Lewis. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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